In honor of Earth Day, a huge clean-up effort took place on the American River.

The clean-up event was organized by the American River Parkway Foundation, which said every year more and more people are volunteering to clean up the environment.

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At the Discovery Park location, more than 130 people came out to pick up trash. And Discovery Park was only one of 11 locations along the river's 30 miles of Parkway. Organizers said in all more than 1,000 people volunteered for the clean-up effort.

And organizers said keeping the environment clean isn't just for Earth Day, the Parkway Foundation does two clean-up days each year in Sacramento.